The Lazy Acre RR depicts a logging railroad in north-central Pennsylvania in 1911. The scale is 1:20.3 which makes it true 3-foot narrow gauge on 45mm track.

History on Morse code, telegraphy, and semaphores.

Various locations in the area.

Pointers to published material (print and online) about the people, places, structures and rolling stock of the 3 foot gauge public railways and tramways of Ireland; and news of preservation efforts.

US Railroad signals - including US&S and GRS searchlight, colorlight and gyralight signals. Detailed photographs and descriptions.

Canadian railway history and stories, by and about railroaders.

Railroad historical society devoted to the study of railroad depots, towers, roundhouses, bridges, and other railroad structures.

Dedicated to establish and maintain a permanent railroad museum, and house, preserve and display equipment, photographic collections and artifacts. Includes a calendar, photographs, information about equipment and depots, and a membership application.

Railroad historical society dedicated to the history of the Chessie Railroad.

Miniature railway club located on Long Island, New York.